Mathematics: June bought 3 1/2 gallons of white paint at $17.50 per gallon and 1 3/4 gallons of blue paint at $19.00 per gallon. what was her total cost?

June bought 3 1/2 gallons of white paint at $17.50

bria58490

04.01.2022

Step 1

Convert mixed numbers to an improper fractions

$3\frac{1}{2} =\frac{3*2+1}{2}= \frac{7}{2}$

$1\frac{3}{4} =\frac{1*4+3}{4}= \frac{7}{4}$

Step 2

Find the total cost

we know that

the total cost is equal to the cost of the gallons of white paint plus the cost of the gallons of blue paint

the cost of the gallons of white paint is equal to

$\frac{7}{2}*17.50= \$61.25$

the cost of the gallons of blue paint is

$\frac{7}{4}*19.00= \$33.25$

The total cost is

$\$61.25+\$33.25=\$94.50$

therefore

the answer is

the total cost is $\$94.50$

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emmahuber980

08.03.2021

Step-by-step explanation:

for sinx or cosx you have to set equation sinx=1 and solve for x... same for cos minimum can be found in sinx= -1

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